clench

From Wiktionary

Pronunciation[change]

Verb[change]

Plain form
clench

Third-person singular
clenches

Past tense
clenched

Past participle
clenched

Present participle
clenching

A clenched fist.
  1. (transitive & intransitive) If you clench your fist, your jaw, your eyes, etc. you close them and hold them closed tightly.

Noun[change]

Singular
clench

Plural
clenchs

  1. (countable) A clench is a tight grip.